How much is the ticket to Qingzhou Heishan? Where is the location?

This mountain is called 800 Li Heishan, and there is a black cave in the middle, where there are three demons. Those three demons are very powerful! Five thousand goblins in Nanling, five thousand in Beiling, ten thousand in Dongkou and ten thousand in Xikou. Four or five thousand patrolmen and ten thousand doormen. There are countless firewood: * * * calculated to be 47,800. These are all named and branded, and they only eat people here.